#181C44#181C44

#181C44 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.074 H 275.3°. Best body text is #FFFFFF at 16.30:1 contrast (WCAG AA passes).

Color values

HEX	#181C44
RGB	rgb(24, 28, 68)
HSL	hsl(235, 48%, 18%)
HSV	hsv(235, 65%, 27%)
CMYK	cmyk(64.7%, 58.8%, 0%, 73.3%)
CIE-LAB	lab(12.23, 12.44, -25.92)
CIE-LCH	lch(12.23, 28.74, 295.63°)
OKLab	oklab(24.82% 0.0069 -0.0742)
OKLCH	oklch(24.82% 0.074 275.3)
XYZ	xyz(1.8350, 1.4419, 5.6493)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C44 #444018

analogous

#183244 #181C44 #2A1844

triadic

#181C44 #44181C #1C4418

tetradic

#181C44 #441832 #444018 #18442A

square

#181C44 #441832 #444018 #18442A

split-complementary

#181C44 #442A18 #324418

monochromatic

#080917 #080917 #181C44 #282F71 #38419E

Accessibility & contrast

On white

16.30

#181C44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#181C44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C44

16.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C44	#FFFFFF	#000000	##FFFFFF
##181C44	1.00	16.30	1.29	16.30
#FFFFFF	16.30	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062245

Deuteranopia (green-blind)

#011E43

Tritanopia (blue-blind)

#01252C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #181c44;
/* rgb */ color: rgb(24, 28, 68);
/* oklch */ color: oklch(24.8% 0.074 275.3);

Tailwind

colors: {
  custom: {
    50: '#5a5778',
    500: '#181c44',
    950: '#000000',
  },
}

SCSS

$custom: #181c44;
$custom-light: #5a5778;
$custom-dark: #000000;

JSON

{
  "hex": "#181c44",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 68
  },
  "hsl": {
    "h": 234.545,
    "s": 47.826,
    "l": 18.039
  },
  "oklch": {
    "l": 0.24822,
    "c": 0.07449,
    "h": 275.3
  },
  "luminance": 0.01442
}

Semantic roles & 50–950 ramp

primary

#181C44

secondary

#7B753D

accent

#CB50D7

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #181C44

Body copy rendered with the generated semantic roles for this colour.

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